Combination swedge



Oct. 17, 1933. E. F. RAYMOND COMBINATION SWEDGE Filed April 28, 1932LCDWFIRD F RAY/140m).

ATTORNEY Patented Oct. 17, 1933 area's strep,

COMBENATION SWEDGE Edward F. Raymond, Long Beach, Calif. ApplicationApril 28, 1932. Serial No. 608,117 I 4 Claims. (Cl; 153-81) Thisinvention relates to improvements in combination swedges.

The general object of this invention is to provide an improved swedgingtool for reforming collapsed pipe and more particularly for useinreforming collapsed oil and gas, or other well, casing.-

Another object of the invention is to provide a swedging tool includingmeans whereby it will reform a pipe which has collapsed at a point abovethe swedgingtool when the tool is operating in a Well.

Other objects and the advantage of this in vention will be apparent fromthe following description taken in connection with the accompanyingdrawing wherein:

Fig. 1 is a side elevation of my improved swedging tool.

Fig. 2 is a central longitudinal section throughthe swedging tool.

Fig. 3 is a section taken on a line 33 of Fig. 1.

Fig. l is a section taken on line 4-4 of Fig. 2.

Referring to the drawing by reference characters, I have indicated myimproved swedging tool generally at 10. As shown the device comprises acigar shaped body portion 12 having at one end thereof a reduced neck 13on which a reduced threaded boss 14 is provided.

The body 12 is annular in cross section and lon gitudinally tapersoutwardly from the outers of the neck 13 to a predetermined diameter andthen tapers inwardly and terminates in a point at the end opposite theneck 13.

Intermediate the length of the body 12 I provide a plurality ofcircumferential grooves which are shown as five in number and areindicated at 15, l6, 17, 18 and 19. These grooves are all of the samedepth thereby causing the groove 18 to have the greatest diameter, thegrooves 17 and 19 having less diameter than the groove 18, the groove 16less diameter than the groove 17 and the groove 15 less diameter thanthe groove 16.

Extending longitudinally of the body 12, I provide a recess whichextends from a point above 'the groove 19 to a point below the groove15.

Position d in the recesses 2-3, I provide a bar 21 which includestransverse grooves 15, 16', 17', 18 and 19' respectively. Positioned inthe grooves 15, 16, 17, 18 and 19 and their associated grooves 15', 16,17, 18' and 19, I provide a plurality of ball members 22. All the ballgrooves are arouate in cross section and are undercut sufiiciently toretain the balls 21 therein.

When positioning the balls 22 in their respective grooves 15, 16, 17, 18and 19 the bar 21 is removed from the recess 20, the required number ofballs placed in the grooves 15, 16, 17, 18 and 19, a single ball placedin each transverse groove of the bar 21 and then the bar 21 is replacedin the recess 20. The bar 21 may be secured in position in any desiredmanner such as by bolts23. Extending throughthe device from the upperend of the threaded bars 14 to adjacent thev pointed end of the body, Iprovide a circulation recess 24 from the bottom of which a plurality of'angularly positioned reduced apertures 25 extend to the outer face ofthe body.

When it is desired to reform a collapsed portion of oil well casing theswedging tool 10 is secured to the lower end of a string of drill tubingand the tubing lowered until the balls in the lower groove 15 engage thecollapsed sides of the casing, whereupon, the tubing is rotated therebyrotating the swedging tool 10. As the device it is thus rotated theballs in the groove 15 in coaction with the weight of the drill tubingforce the collapsed casing wall outward until it is of sufilcientinternal diameter to allow the balls inthe groove15 to move downward. Asthe device 10 continues to travel downward theballs in the groove 16engage the partly reformed side walls of the collapsed section of casingand force it outwardly until it is of a sufiicient internal diameter toallow the balls in the groove 16 to move downward. The halls in thegrooves 17 and 18 perform the same function as the device continues tomove downward.

When the balls in the groove 18 are free to move longitudinally inthepreviously collapsed section of the well casing, the collapsedsection has been reformed to its original diameter. Should the wellcasing collapse at a point above the device 10 while it is in the well,the operator raises the drill pipe until the balls in the groove 19engages the side walls of the collapsed section and rotates the drillpipe and the device 10 and 'atthe same time retains a constant upwardpull on the drill pipe thereby retaining the balls in the groove 19 intight engagement with the collapsed side walls of the casing. As thedevice 10 is thus rotated and pulled upward the balls in, the grooves 19force the collapsed walls of the casing outward until they can moveupward whereupon the balls in the groove 18 engage the partly reformedcasing side walls and force them outwardly until the collapsed sectionof casing is reformed to its original diameter.

From the foregoing description it will be apparent that I have provideda novel swedging tool which is simple in construction and highlyenicient in use.

Having thus described my invention, I claim: 1. In a swedging device, acigar shaped body,

having an annular groove therein, said body having a recess therein, abar positioned in said recess, a groove in said bar in register with thegroove in said body, means to secure said bar to said body, and aplurality of rotatable members in said groove of said body and in saidtransverse groove of said bar, said members extending beyond theperiphery of said body.

2. In a swedging device, a body, said body including a head portion atone end having a reduced threaded hub thereon, said body beingsubstantially cigar shaped a plurality of spaced annular grooves in saidbody portion, one of said grooves being arranged at the largest diameterof said body, and the others of said grooves being positioned at eachside of said first mentioned groove there being a longitudinallyextending recess in said body, a bar positioned in said recess andhaving a plurality of transverse grooves in register with the grooves insaid body, means to secure said bar to said body, a plurality ofrotatable members in each of said grooves of said body and in saidtransverse grooves of said bar, a portion of each of said rotatablemembers extending beyond the periphery of said body.

3. In a swedging device, a body, said body including a head portion atone end having a reduced thread hub thereon, said body being annular incross section and longitudinally tapering outward from said head to acertain diameter and thereafter tapering inward and terminating in apoint at the end opposite said head, there being a plurality of spacedannular grooves in said body portion, one of said grooves being at thelargest diameter of said body, the other grooves being positionedintermediate said first mentioned groove and the ends of said body, alongitudinally extending recess in said body, a bar positioned in saidrecess, a plurality of transverse grooves in said bar in register withthe grooves in said body, means to secure said bar to said body, aplurality of ball members in each of said grooves of said body and insaid transverse grooves of said bar, a portion of each of said ballmembers extending beyond the periphery of said body.

4. In a swedging device, a tapering body portion having a plurality ofannular grooves therein, said body having a longitudinal recessintersecting said grooves, a removable member positioned in said recess,said removable member having grooves in alignment with said firstmentioned grooves, a plurality of rotatable members in said grooves,said rotatable members projecting beyond the surface of said body.

EDWARD F. RAYMOND.

